Button-slug-cutting machine



June 24 1924.

c. E. DOTY BUT' IQN SLUG CUTTI NG MACHINE Filed March 16 1923 3Sheets-Sheet l- Jime- 24 1924. 1,499,157

c. E. DOT! BUTTON SLUG CUTTING MACHINE Filed March 16. 1923 5Sheets-Sheet 2 Jame 24 1924.

C.E.DOTY

-BUTTON SLUG CUTTING MACHINE Filed March 16. 1923 3 Sheets-Sheet 5Patented June 24, 1924.

UNITED STATES CHARLES E. DOTY, F COLUMBUS JUNCTION, IOWA.

' BUTTON-SLUG-CUTTING MACHINE.

Application filed March 16, 1923. Serial No. 625,678.

T 0 all whom it may concem:

Be it known that CHARLES E. DoTY, a citizen ofthe United States,residing at C0- lumbus Junction, State of Iowa, has invented certain newand useful Improvements in Button-Slug-Cutting Machines, of which thefollowing is a specification.

In the manufacture of pearl buttons from slugs or blanks it is oftennecessary that these slugs or blanks be ground to a specific thickness.Oftentimes I have noticed that these slugs or blanks are of such athickness as to permit of the'manufacture of two buttons therefrom ifany means were known for dividing these slugs into two parts of equalthickness.

My invention therefore has for its primary object the provision of sucha machine that will effectively divide button slugs or blanks into twoparts for permitting two buttons to be manufactured from a single slugof a certain thickness.

A further object of my invention is the provision of such a button slugcutting machine that embodies all of the characteristics of simplicityof construction, inexpensiveness of manufacture and high usefulness ofpurpose.

The nature and advantages of the inven- 30 tion will be betterunderstood when the following detailed description is read in connection with the accompanying drawings, the invention residing in theconstruction, combination, and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals ofreference indicate similar parts in the several views, and wherein v sFigure 1 is a vertical elevation of my improved button slug cuttingmachine;

Figure 2 is a vertical cross section taken substantially upon the line22 of Figure 1 disclosing more clearly the cutting saw of the machine;

Figure 3 is a detail cross section upon the line 83 of the same figure;

Figure 4 is a detail cross section of the button slug holding chuck;

Figure 5 is a transverse cross section upon the line 55 of Figure 1;

Figure 6 is a fragmentary plan of the bed plate comprised in myinvention;

Figure 7 is an end elevation of the button slug chuck; and

Figure 8 is a detail cross section upon the line 8-8 of Figure 2, moreclearly showing the securing means between the upper ends of the sawblades and their carrying frame, l Referring to the drawings in detail,5 designates what may be termed a bed plate provided with a longitudinalslot 6 adjacent one end thereof. This plate is adjust-ably securedthrough the medium of a bolt 7 pass-- ing through said slot 6 to oneside of the bed 8 of the button making machine.

Secured adjacent one end of the said bed plate 5 is a verticallyextending saw frame guide 9, the vertical side walls of which areslotted as at 10, more, clearly shown in Figures 2 and 5.. Slidablewithin the said channels 10 of the said saw frame guide 9 is asubstantially inverted V-shaped saw frame 11 and secured to the lowerends of the legs constituting a portion of the frame are the hack-sawblades 12, these blades extending upwardly and converging inwardlytoward each other and being secured through the instrumentality of abracket plate 13 to the said frame 11.

Formed upon one of the vertical side walls of the said saw frame guide 9is a lateral projection 14 to which is pivotally secured at 15 one endof a hand operating lever16. This lever carries a forwardly projectingpin 17 upon which is freely movable a flanged roller 18, the sameadapted for free movement within a horizontal slot 19 in said saw frame11. The saw frame is normally maintained in a position upwardly withinthe guide '9 through the instrumentality of a coiled spring 20. l

Connected to the lever 16 is one end of a flexible cable 21, the otherend of this cable being secured to a cable drum 22 which is journaledbetween brackets 23 formed upon the adjacent vertical side wall of theguide frame 9. This drum 22 isprovided with a handle 24 and it will atonce be apparent that by winding the cable 21' upon the said drum 22 thesaw frame 11 will be moved downwardly within its guide, the lever 16also effecting an appropriatemeans for controlling the movement in areverse direction of the said saw frame Upon the frame end of the bedplate 5 is a bracket 26 to which is secured one end of a horizontallyextending plate 27. Slidable upon the member 27 is an L arm 28 to oneend of which is pivotally secured a link 29, this link being in turnpivot-ally secured to one end of a lever 30, which lever is pivoted at81 to the member 27.

Directly above the member 27 and in longitudinal alinement therewith isthe headed end 32 of a power shaft 33, this headed end being socketed at3 f for receiving therein one end of a hollow chuck shaft 35. The frontportion of this chuck shaft 35 is split for providing fingers 36 whichnormally tend to spring away from each other in the well known manner.W'ithin the said hollow chuck shaft 85 is a pin or rod 37 normallyforced toward the front end of the shaft through the instrum'entality ofa coil spring 38. Upon the said chuck shaft 35 is the well known type ofchuck collar 39,

the same being normally forced forwardly upon the shaft throughthe'medium of an expansion spring 40 for closing the said spring fingersupon the chuck shaft. As is obvious, the chuck collar 39 iscircun'iferentially grooved adjacent its inner end at 41 and engagingtherein is the notched end of the vertical portion of said L-shaped arm28.

The front end of each of the fingers 36 constituting the chuck shaft 35are recessed for receiving a button slug or blank A, Figure 4, whenthese fingers are extended and in view of the above description it will,of course, be understood that when the saw f'ame 11 is raised within theguide 9 by the operation of the lever 30 the chuck collar 39 will bemoved rearwardly upon the shaft 35 for permitting of the insertion of abutton slug or blank between the spring fingers 36 of the chuck shaft.Upon releasing the handle 30 the collar 39 will move forwardly opposingthe fingers upon the slug.

I do not desire to limit myself to any specific means of rotating theshaft 33 as any means may be provided without affecting the scope andspirit of the invention. After a button slug or'blank has been receivedwithin the end of the chuck shaft 35 the same is rotated, the saw frame11 is slid downwardly within the guide 9 by winding the cable 21 uponthe drum, it being of course clearly understood that the slug willengage the toothed edges of the saws 12 as they move downwardly and willbe effectively divided into two equal parts.

Although I have herein shown and described the preferred embodiment ofthe present invention, itis nevertheless to be understood that minorchanges may be made there n, without departing from the spirit and scopeof the invention as claimed.

7 Having thus I described my invention, what I claim as new and desireto secure by Letters Patent 1s:

i 1. In a machine of the class described, a

guide frame, apair of saws rectilinearlymovable within sald frame andarranged in inclined relation thereto, a power shaft rotatably mountedforwardly of said guide having means upon one end thereof for receivingand rotating abutton slug, means for moving the said saws downwardlywith in the frame, and automatic means for normally raising said sawswithin the frame whereby the downward movement of the saws will cut therotating slugs carried by the shaft.

2. In a machine of the class described, a guide, a cutting memberslidable within said guide,.means for moving said cutting mem berdownwardly within the guide, automatic means for raising said cuttingmember within the guide, and a power shaft rotatably mounted forwardlyof the guide having means upon the end adjacent to the guide forreceiving and rotating a button slug whereby said slug is divided in themovement of the cutting member in the guide.

3. In a machine of the class described, a vertical guide member, a sawframe vertically movable within said guide and carrying a pair ofcutting saws mounted in inclined relation in said frame, {automaticmeans for rasing said frame within the guide, manually operated meansfor moving said frame downwardly within the guide, and a power shaftrotatably mounted forwardly of the guide and having one end disposedwithin the guide with means thereon for receiving and rotating a buttonslug to be cut by said saws in the movement of the saw frame in theguide member. 1

4t. In'a machine of the class described, a vertical guide member, a sawframe movably mounted within said guide and carrying a pair of cuttingsaws, mounted in relatively inclined relation to each other and saidframe, automatic means for raising said frame within the guide, manuallyoperated means for moving said frame downwardly within the guide, apower shaft rotatably mounted forwardly of the guide and having one enddisposed within the guide with means thereon for receiving and rotatinga button slug, andmeans for adjusting said guide-in a direction towardor away from the end of said power shaft, whereby said slug may bedivided into desired lengths.

5. In a machine of the class described, a vertical guide member, a sawframe vertically movable within said guide and carrying a pair ofcutting saws'arranged in inclined relation to each other and said framefor cutting cooperation in the movement of the frame, automatic meansfor raising said frame within the guide, manually operated means formoving said frame downwardly within the guide, a power. shaft rotatablymounted forwardly of the guide and having one end disposed within theguide with button slug, button slug shaft. 7 J

6. In a machine of the class described, a vertical guide member, a sawframe slidable in said guide member and carrying a pair of cutting sawsarranged in an inverted V- shape means for normally holding said saWframe in one position in the guide member, manually operated means formoving said saw frame in the member, and a shaft r0- and means forreleasing said from the end of said power tatably mounted forwardly ofthe guide member and having one end disposed adjacent thereto andprovided With means for receiving and rotating a button slug in the 1ture.

CHARLES E. DOTY.

In testimony whereof I afiix my signa- 20

